Zylus sits next to 4 phonetic neighbors — Silas, Cyrus, and Zander are the closest matches by sound. Most share Zylus's Latin (via modern invention)-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the forest, wood dweller (via Silas)"
"whole, healthy"
"of the field, strong"
"thankful, God has heard"
"celestial body"
"eternal, hidden"
"prince, commander"
"modern invented name"
"creative modern spelling variant"
"peace and agreement"
"belonging to God"
"God has helped"
"Lord, have mercy (liturgical)"
"lapis lazuli, beauty"
"round hill, hillock"
"kingly, held by the heel (supplanter)"
"slender one"
"chess castle piece"
"champion, famous one"
"rocky stream"
"one who lives near a steep bank"
Similar sound: These names share phonetic patterns with Zylus — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin (via modern invention) origins, giving them the same cultural heritage as Zylus.
Rhythm: Zylus is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.